
机器学习
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卷积神经网络简介(A introduction to convolutional neural networks )
最近一直在看卷积神经网络(CNN),把我对CNN的理解记录如下(主要是在computer vision 领域)。本质上, 卷积神经网络是一种特殊的神经网络(NN)。CNN 与 NN 最大的不同在于结构的不同。对于NN来说,层与层之间的神经元是完全连结的(fully connected), 这样会导致可调节参数过多,学习这些参数非常困难,容易出现过拟合的问题。另外一个问题这种完全连结的结构原创 2013-10-07 14:48:58 · 3094 阅读 · 0 评论 -
生成 ZIG-ZAG 扫描顺序MATLAB代码
MATLABfunction matrix = zigZag(n) %This is very unintiutive. This algorithm parameterizes the %zig-zagging movement along the matrix indicies. The easiest way to see %what th转载 2014-03-24 17:13:27 · 6051 阅读 · 0 评论 -
关于线性变换的一些概念
Linear mapping, linear transformation, homomorphism, isomorphism, operators, linear and nonlinear transformations, change of basis, similar matricesDef. Linear mapping (or linear transformation)转载 2014-03-24 17:09:36 · 1281 阅读 · 0 评论 -
人脸识别 开放书籍 下载地址
http://www.intechopen.com/books/face-recognition原创 2014-05-09 00:47:18 · 2255 阅读 · 0 评论 -
一张图清楚解释 计算复杂度 bigO
ppt地址 https://docs.google.com/presentation/d/1I-F2F9ntZzfZTk15yBcpMHEMqBK3VNezVOmiU2kKGnA/edit#slide=id.i86原创 2014-06-12 16:11:51 · 2156 阅读 · 0 评论 -
Convolutional neural network class 卷积神经网络 代码
https://sites.google.com/site/mihailsirotenko/projects/convolutional-neural-network-class原创 2014-07-09 01:49:53 · 812 阅读 · 0 评论 -
Reproducing Experimental Results
http://www.cad.zju.edu.cn/home/dengcai/Data/ReproduceExp.html原创 2014-08-01 18:16:13 · 508 阅读 · 0 评论 -
matlab 代码 一些常用的 降维算法
http://sugiyama-www.cs.titech.ac.jp/~sugi/software/SoftwareThe software available below is free of charge for research and education purposes. However, you must obtain a license from原创 2014-07-30 17:26:08 · 11940 阅读 · 2 评论 -
matrix analysis and applied linear algebra
读书笔记 ill conditioned and well conditioned linear systems ()原创 2014-10-29 13:33:51 · 1486 阅读 · 0 评论 -
卷积神经网络 资源
http://blog.163.com/lipse_huang/blog/static/19165754520133954138888/http://blog.youkuaiyun.com/zouxy09/article/details/14222605http://www.codeproject.com/Articles/16650/Neural-Network-for-Recognition-原创 2014-09-27 22:25:57 · 1273 阅读 · 0 评论 -
有用的机器学习资源
1 . 课程 :ICS273A machine learning 地址: http://www.ics.uci.edu/~dramanan/teaching/ics273a_winter08/ Regularization and PCA 部分很好2. 神经网络 backprop algorithm Donald R. Tveter, The Backprop Algo原创 2013-01-10 16:46:02 · 545 阅读 · 0 评论 -
caffe 学习资料
http://courses.cs.tau.ac.il/Caffe_workshop/Bootcamp/pdf_lectures/原创 2015-03-29 13:23:03 · 422 阅读 · 0 评论 -
reading list
When Face Recognition Meets with Deep Learning: an Evaluation ofConvolutional Neural Networks for Face Recognition原创 2015-04-15 15:32:38 · 550 阅读 · 0 评论 -
神经网络特征可视化
1. visualizing higher-layer features of a deep network本文提出了两种可视化方法。 1. 最大化activation当训练完一个深层神经网络之后, 固定所有参数。 然后对于某一个神经元的activation进行梯度上升优化来寻找能使它的值最大化的input。 不断的用gradient ascent来更新一个初始化为random原创 2015-07-09 22:04:31 · 2664 阅读 · 0 评论 -
face databases
http://web.mit.edu/emeyers/www/face_databases.html#ar原创 2014-02-21 14:47:33 · 584 阅读 · 0 评论 -
Four face databases in matlab format 4个matlab 格式的 人脸识别 数据集
人脸识别数据集原创 2013-12-28 13:03:35 · 1368 阅读 · 0 评论 -
good sentences from some papers
The following is the list of some good sentences from CV papers, more sentences will be added in the future. 1. In practice, the feature dimension m is often very high and, thus, it is necessary and原创 2014-01-11 15:27:33 · 623 阅读 · 0 评论 -
在matlab中使用PCA
x = [2.5 0.5 2.2 1.9 3.1 2.3 2 1 1.5 1.1]; % 原始的数据有两个维度y = [2.4 0.7 2.9 2.2 3.0 2.7 1.6 1.1 1.6 0.9]x = x - mean(x); % 先减去均值,使得数据变为均值为0y = y - mean(y);plot(x,y,'*')data = [x' y'];C = cov(d原创 2013-11-02 13:36:32 · 1404 阅读 · 0 评论 -
maximum likelihood estimation 一个讲解
https://files.nyu.edu/mrg217/public/mle_introduction1.pdf原创 2013-11-16 19:27:08 · 1112 阅读 · 0 评论 -
What is Mahalanobis distance?
Distance in standard unitsIn statistics, we sometimes measure "nearness" or "farness" in terms of the scale of the data. Often "scale" means "standard deviation." For univariate data, we say that转载 2013-11-06 10:52:48 · 1085 阅读 · 0 评论 -
机器学习推荐书目
来源:水木社区人工智能版。发信人: Insomnia (完美主义是种病), 信区: AI标 题: Machine Learning书单发信站: 水木社区 (Fri Mar 29 16:46:37 2013), 站内持续更新,请补充。除了以下推荐的书以外,出版在Foundations and Trends in Machine Learning上面的survey文章转载 2013-11-08 20:09:37 · 606 阅读 · 0 评论 -
Scatter, Covariance, and Correlation Matrix 联系与不同
These three types of matrices often form the basis of a multivariate method. The correlation and the covariance matrix are also often used for a first inspection of relationships among the variables o转载 2013-11-12 14:24:42 · 928 阅读 · 0 评论 -
为什么只有方阵有逆矩阵? 证明
转载 2013-11-14 11:15:56 · 10760 阅读 · 0 评论 -
一个讲解PCA和SVD很好的教程
地址 http://www.snl.salk.edu/~shlens/pca.pdf原创 2013-11-14 11:30:33 · 3681 阅读 · 0 评论 -
Orthogonal Diagonalizable 一些相关定义
转载 2013-11-14 11:28:33 · 1106 阅读 · 0 评论 -
linear programming , quadratic programming, nonlinear programming and integer programming
The example of this section has three important properties.• Its variables (the amounts of ice cream and butter to produce) are continuous variables. They can take on any real value, subject to sati转载 2013-11-15 16:45:15 · 1134 阅读 · 0 评论 -
imageMagick 转换RGB raw 图像 到 BMP 图像 方法
http://www.imagemagick.org/discourse-server/viewtopic.php?t=22999&p=96286原创 2013-11-29 12:00:16 · 1963 阅读 · 0 评论 -
什么是 whitened
a zero mean random vector is said to be white if its elements are uncorrelated and have unit variance原创 2013-12-07 15:35:17 · 1184 阅读 · 0 评论 -
face recognition matlab code 人脸识别
matlab 人脸识别代码原创 2013-12-08 12:42:42 · 3224 阅读 · 0 评论 -
如何Latex中把下标放置到正下方
使用 \xleftarrow or \xrightarrow. 两者的用法相同。a=b \xleftarrow[H]{\xi+a\timesc} f=g 使用 \overseta=b \overset{F}{\longleftarrow}c=d 使用 \stackrela=b \stackrel{F}{\longleftright转载 2013-12-05 15:58:20 · 8331 阅读 · 0 评论 -
SpaSM: A Matlab Toolbox for Sparse Statistical Modeling matlab 工具箱 LDA-L1 norm
matlab tool box for LDA-L1 norm原创 2014-01-03 14:54:15 · 3415 阅读 · 0 评论 -
编译MatConvNet window下解决gdiplus库的问题
编译MatConvNet的时候,matlab 提示不能链接gdiplus库解决方法: 下载gdipllus库,并修改visual studio项目属性使得该库可以被链接。原创 2015-12-19 22:04:17 · 715 阅读 · 0 评论